Hay stacker



June 1931. l' v J; F. CHLADEK 1,809,178

HAY STACKER Filed-May 7, 19.30 4 sheets-sheet 1 lJ. F. CHLADEK HAY sTAcxER Jun 9,Y 1931.

Filed Mayl 7, 195@ r4 'sheets-sheet 2 Mummia y f June 9,- 1931. v J. F. cHLADx-:K 1,809,178

HAY STACKER Filed May 7 1930 4 Sheets-Shed'. 3

' J. F. QHLADEK HAY STACKER Filed-May '7, 1930 -4 sheets-sheet 4k,

Patented June 9,1931 I "UNITED STATES i yriairrzlauf OFFICE l i JosnrH vF. cHLnDEK, or ivroimAnA, livzfirnssna i Y. y

Y y HAY s'rAcxim i pensamos mea may n', 1930. semi No. 450,490.

The invention relates to improvements in View taken substantiallyon line of material handlers ofthe type commonly Fig. -1. 1 n 5 l Y known as hay stackere, although not re- Fig. 5 is a side elevation showing the restrgted to this partculapeld ginge, lation of parts when'` the stacking head is '5 One object of the invention is to gener.- y completely raised. s f f 55 f ally improve upon the construction shown Fig. ,is an enlarged longitudinal secby my U. S; Patent No. 1,422,667 of July 11, tional View through la number of parts in 1922, the improved structure being such as the .relationillustrated lin Fig. 5. f Y

. to possess morerigidity for handling heavy Flg. 7 is a perspective view illustrating 1o loads and t0 require .less expenditure of the two levershereinafter described. V "6 0 power,l Flg. 8 is a detail sectional view on line A furtherlobject is to provide a stacker 7-7 of Fig, 2.

wherein the stacking head on the end-s of the Fig. 9 is ,a perspective view illustratinga conventional vertically swingable arms, is 1301121011 0f the base and the swingable stand l1,5 operated by a novelarrangement'of levers ardsfwhich are mounted on,- saidbase to 6.35`

and standards, serving to equalize the pull carry the levers shownin Fig. 6. y Y. throughout the entire upward movementof The drawings abovebrieflyvdescribed may the'lOdl i be considered as showing the preferred conp Another aim is to provide a stacker of such struction, and whilek such construction willY- 2,0 construction as to'reduce vthe4 amount of pull be herein yspecifically explained, it is to be '50 v25 upon stacking devices by the provision of bars 11, 12 and 13, and suitably braced as upon the operating cable, to a minimum, in understood that within the scope of the inturn reducing the distance which the prime vention as claimed, variations may be made. mover, whatever it may be, "must travel.` The base B may well consistof parallel Yet another aim is to generally improve runner-forming sills lconnected by transverSc one of rather simple, yet durable construcat 14together with a truss structure 15, this tion Ywhich will effectively accomplish the truss structure being supported .primarily desired results and can be manufactured and uponrthebars 11 and, 12 and secondarily byy y sold at comparativelylowcost.` .y the bracing means 13. rThe truss ystructure 30 A still further ob-'ect is to provide novel k1.5 Vmay bejof any desired detail construen 870 means for supporting.v the swirtgable arms t10n,but it preferably embodies two longif which carry the stacking head, when the tudlnalsills 16,.a longitudinally. disposed vstacker is to betransported from one place truss 17 between said sills, andtwo trusses to another, said means being retractible when 18 `at the Outer sides thereof. j y f the Stacker is t0 be Operated, Y lOWeI ends OZWO .Standards 19 are ,S5 :'With the foregoing and minor objects in reelved between .the .STUSSQS 1 7 and 18, and view, the invention resides in the novel suba 191V()J0 rofl Shaft 0f the bke 20 PaSSES ject matter hereinafter described' and through Sad trusses and .Saul Standards tof claimed, description being accomplished by mmt. fthe latter for SWmgmgLbngmum 9o reference to the accompanying drawingsy 9 tmtbaie ld), OPpOSl-"e 'Stds of Fig. lfisa side elevation showing the relaste Ralf O S an ar. s T91 tW-O addltlonal' .i .Y y* andards 21form1ng poitionsof two A- tionof parts which exists when the stackllg frames 22 thesev frames being disposed in head is lowered. i

a transverse lane. The inner le s of the 45 -Flg' 2 1S a melf-simular t0 Flg' 11b-ul A -frames, forihed by the-standardgs- 21,A are ShOWllg the flatlonpf emmen@ Whenjthe disposedat the outer sides `of the sills '16,y Stadplllghed 1S' Paftmuy raised* ,Y while the outerlegs of said frames are-po- .Flg- 3 1S il tQpPlaIl Vlewwlth the parts sitioned at the inner sides of bearing blocks related as'in Flg. 2. Y l 23 which are secured upon the runner-formf 5,0 Fig. 4 1s a vertical transverse sectional ing sills or the like 10. v -A second pivotrod 109 between said standards 21 and 19, whereby` movement of one pair of standardswill ef.- fect movement of the other pair.

A suitably trussed lever 26 is fulcrumedl between its ends at 27, to the upper ends of the standards 19. A second, bifurcatedlever 28'has its furcations 29 fulcrumed at 30 to the upper ends of the standards' 21, said furcations straddling one end of the lever 26. This lever end is provided with rollers 31 upon which the furcations 29 rest, establishing a slidable connection between the intermediate portion of the lever 28. and one end of lever 26. Preferably, this lever 26 is provided withguards 32 at the outer ends of the rollers 31 to .slidably engage the outer sides of the furcations 29. Lever28 eX- tends toward the receiving end ofthe stacker and is connected by lift rodsV or the like 33 with longitudinal arms 34, said .arms being pivoted to the base B and, provided with a stacking head 35. The end of lever 26 remote from the rods or the like 33, is

provided with a sheave 36 and with a cable vanchor 37. A second sheave 38 is'carried by links 39 which are' connected with the lower portions of the standards 21. A third sheave 40 is mounted between the sills 16 at the end thereof toward the delivery end of the stacker, a-nd mounted on the transverse bar 13 at said end of the stacker, is an appropriate Vcable guide 41. An operating cable 42 is anchored at oneend to the anchor 37 and is trained around the sheaves 38, 36

and 40, the free end of the 'cable being passed through the guide 41 to be operated in the usual wayto effect raising and lowering of thev stacking head 35.

. Preferably, the Vinner ends of thel arms 34 f are provided with downwardly projecting blocks or the like'43 through which a shaft 44 passes to pivotally connect said arms-with the base B. This construction also provides an off-centery pivotal mounting for the arms 34, with the result that before said arms are completely raised to vertical'positions, the center of gravity of thestacking lhead'35 andy its load, will pass a plane extending through the pivot 44, causing the arms 34 and stacker l35 to complete their stacking movement by gravity. The movement of these parts in stacking direction, may be limited by cables or the like 45 which are connected at one end with the arms 34, the other ends of said cables being connected with a shock absorbing device 46 which lis '-1 anchored at 47 to the crown of the truss 17.

The anchor 47 is preferably on the upper end of a strut bolt 48, the lower end of this bolt being passed through a plate or the like 49 which extends under the sills 16 and may assist in supporting the trusses 18, as seen in Figs. 6 and 8.

For the purpose of supporting the arms 34 and stacking head 35 above the ground when-the machine is being drawn from one place to another, I provide the bars 50 which are shown most clearly in the lower portion of Fig. 8. These bars are `pivoted at 51 upon the bar 11 so that they may swing inwardly to the full line positions of Fig. 8 or outwardly to the dotted line positions thereof. When the machine is operating, the bars '50 are in their inwardly swung positions, but when the machine is to be transported, these bars are swung outwardly and may then serve as supports upon which the arms 34 rest, holding these arms and the stacking head 35 considerably above the level of the ground.

The stacking head 35 is loaded when the parts are in the relative positions shown in Fig. 1. A pull upon the cable 42, now causes swinging of the .levers 26 and 28 and swinging of the standards 19 and A-frames 22 toward the discharge end of the stacker, as seen in Fig. 2. The sliding connection between the lever 26 and the lever 28 is of course the instrumentality for imparting movement to the latter and this lever 28 pulls upon the connections 33 to upwardly swing the arms 34 and their stacking head 35. By the time the parts have moved about to the maximum, as seen in Figs. 5 and 6, the arms 34 have swept past their dead center positions and the load is discharged in the usual way. As the raised arms 34 reach their final raised positions, the cables or the like 45 tighten and stress the spring of the shock absorber 46, with the result that this spring acts to re-swing the arms 34 past dead center' to allowV them to return by gravity, thereby causing return of the other parts to their normal positions, as slack is created in the pull cable 42.

It will be seen from the foregoing that I have made novel provision for carrying out the objects 'of the invention, and attention is again invited to the fact that within the scope of said invention as claimed, variations may be made.

`I claim.:

l. A stacker comprising a base, longitudinal arms pivoted to said base and having a stacking head, a standard. pivoted to said base to swing longitudinally thereof, a

second standard pivoted to said base to lia a second longitudinal lever kfulcrumed at one of its ends to the upper end of said second standard and extending therefrom to ward the receiving end of the stacker, lift 5 connections between the other end of said second lever and the aforesaid arms, a slid- 1 ing connection between one end of the first named lever and the intermediate portion of saidsecond lever, and means connected` with the other end of said first named lever for drawing said end toward the base.

2. A stack-er comprising a base, longitudinal arms pivoted to said base and having ay stacking head, a standardvpivoted to said base to swing longitudinally thereof, a second standard pivoted` to said base to swing longitudinally thereof, a sliding connectionk between the two standards whereby swinging of one will swing the other, a longitudinal lever fulcrumed between its ends to the upper end of the first named standard, v a second longitudinal lever fulcrumed at one of its ends tothe upper end of said second standard andextending therefrom toward the receiving end of the stacker, lift connections between the other end of said second lever and the aforesaid arms, a sliding connection between one end of the first named y lever and the intermediate portion of said second lever, one sheave on the other end of' said first named lever, la second sheave on said second standard near the lower end of the latter, a thirdV sheave on'the base 'spacedv toward the delivery end of the stacker from said standards, and an operating cable trained around said sheaves and anchored at one end. v

3. A stackercomprising a base, longitudil Y nal arms pivoted to said base and having a 40 stacking head, a standard pivoted to said base to swing longitudinally thereof, two 1 A-frames disposed in a transverse plane and positioned at opposite sides of said standard, the lower ends of said A-frames being pivoted to the base on a transverse axis, sliding connections between said standard and said A-frames, 'a lever fulcrumed be-` tweenv its ends to the upper end of said. standard, a bifurcated lever having its furl cations pivoted to the upperv ends of said A-frames, said bifurcated lever eXtendin toward the receiving end of the stacker, li t connections between saidV bifurcated lever and the aforesaid arms, a sliding connection between the intermediate portion of' said bifurcated lever and one end of the first named lever, and means connected with the other end of said first named lever for drawing it toward the base. f

n testimony whereof I have hereunto affixed my signature.

JOSEPH F.' CHLADEK. 

